A Colorado single mom who managed to beat cancer four times was killed when a stranger who claimed he was just cleaning his gun fired bullets into her home, cops said. Jennifer James, 49, was fatally shot when 20-year-old Ebenezer Worku allegedly opened fire from his car while parked outside the victim’s house in Berthoud, north of Denver, on April 28. The gunman told police that he accidentally shot at the home with his Glock 22 handgun — and then fired again when he was trying to clear the chamber, KDVR reported, citing a police affidavit.